operator [] method
The object at the given index
in the list.
The index
must be a valid index of this list,
which means that index
must be non-negative and
less than length.
Implementation
@override
T operator [](int index) {
if (index >= 0 && index < _buf.length) {
return _buf[_normalizeIndex(index)];
}
throw RangeError.index(index, this);
}